Update docs/sphinx/source/user_guide/glossary.rst

Co-authored-by: Kevin Anderson <[email protected]>

Author: RDaxini

docs/sphinx/source/user_guide/glossary.rst

@@ -145,9 +145,6 @@ There is a convention on consistent variable names throughout the library:
     surface_azimuth
         Azimuth angle of the surface
 
-    surface_tilt
-        Tilt angle of the surface
-
     surface_tilt
         Panel tilt from horizontal [°]. For example, a surface facing up = 0°,
         surface facing horizon = 90°.